128 
THE ESSEX NATURALIST. 
The nomenclature of the discomycetes is that of E. Boudier which has 
been adopted by British mycologists. 1 
In addition to the above, the following species were met with, and con¬ 
stitute new records for Epping Forest. 
Russula punctata (Gillet) R. Maire. 
Mavasmius obtusifolius Rea. n.sp. 
Psalliota hcemovvhoidavia Kalchbr. 
Covticium confine Bourdot et Galzin. 
Covticium sulphuveum (Pers. non Fr.) Bres (= Phlebia vaga Fr.) 
Hypochnus fuscus (Pers.) Karst. 
Hypochnus vubiginosus Bres. 
The Mavasmius obtusifolius recorded above is new to science. It 
was found by Mr. C. H. Grinling, M.A., at the base of an old Hornbeam. 
At first sight it suggested Collybia vertirugis (— Mavasmius undatus), but a 
more careful inspection showed very distinctive characters, chief of which * 
were the projecting cystidia, easily seen on the blunt gills with a 
lens ; also the large ovate guttulate spores. A specimen was sent to Mr. 
Carleton Rea, who will describe it fully with the usual Latin diagnosis 
in the transactions of the British Mycological Society. Meanwhile the 
following description may be given :— 
Mavasmius obtusifolius Rea ; 
Pileus 1-2 cm. white with tawny centre, membranous, rather flat * 
smooth, grooved ; margin at first involute. 
Stem 2-4 cm. long. imm. thick, tawny with apex white, solid, 
velvety. 
Gills pale, adnate, anastomosing near stem to form a ring 2 mm. wide, 
distant, equal, very obtuse and thick, the edge under lens bristling with 
cystidia. 
Flesh white, thin, without smell or taste. 
Spores hyaline, broadly ovate, 14-15 x 10-12M. guttulate. 
Cystidia numerous, fusoid-ventricose. 95-145 x 17-25^., with 
globular apex 14-1 8m. Cuticle of the pileus with sub-globose or 
pyriform cells 20-23/u dia. 
Miss G. Lister, F.L.S., reports on the Mycetozoa as follows:— 
The route taken, through the Birch Hall woods, across the forest 
by the Furze Grounds, the Keeper’s Cottage, and Monk Wood to High 
Beach, afforded a varied hunting ground. Part of the Chingford 
forest was also searched with good results by Mr. Ross in the early morning, 
before he joined the main party at Theydon. The previous fortnight had 
been very dry, yet, thanks to the brilliant day and the efforts of many 
collectors, twenty-three species of Mycetozoa were found, whose names 
are given in the following list. 
Physavum nutans Pers. 
P. bitectum Lister. One sporangium only on a dead leaf. 
Fuligo septica (L.) Gmel. In immature condition and also old and 
weathered. 
1 Mr. J. Ramsbottom has drawn up an excellent list of the new names ; see Transactions. 
0 f the British Myeological Society, 1913. 
